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2 Sheets-Sheet 1 9 3 x a a I 3 0 2 Z 3 74 1 3 9 n 3 A! 0 a m H 3 r m. 17 4 5 5 u a a 0 1 a w M 1% 1 J m M L K n e m T h 7: y g m x 1 7 2 w fixd E n b ml WWH WQE March 12, 1957 E. T. JACKSON 24,235

ADJUSTABLE DOOR CASING Original Filed April 29, 1952 2 Sheets-Sheet 2 [menTor' E'dw/h T Jackson m rro United States Patent ADJUSTABLE DOORCASING Edwin T. Jackson, Tallahassee, Fla., assignor to Jackstite, Inc.,Tallahassee, Fla., a corporation of Florida Original No. 2,706,837,dated April 26,1955, Serial No.

284,897, April 29, 1952. Application for reissue 0ctober 8, 1956, SerialNo. 614,772

18 Claims. or. 20-11 Matter enclosed in heavy brackets]: appears in theoriginal patent but forms no part of this reissue specification; matterprinted in italics indicates the additions made by reissue.

This invention pertains to casings or finish frames positionable inbuilding wall openings, such as door and window openings. Moreparticularly, the invention relates to a casing adapted for fasteninginto a rough doop opening of the interior wall of a building.

A' general object of this invention is to provide an improved adjustablecasing for a building wall opening.

The casings contemplated by this invention are primarily intended forsubstantially complete pre-assembly at a factory or mill and subsequentdelivery to the building site for rapid erection in the rough wallopenings.

The walls of modern houses are of many difierent thicknesses since agreat many houses are now finished with wall coverings other thanstandard inch' plaster. Such other coverings include, for example, /4inch plywood or paneling, Vs inch linoleum sheets, plaster board of anyone of several thicknesses and plaster inch thick. Furthermore the roughopenings in building walls are often neither perfectly rectangular norplumb and the rough framing studs defining the opening, that is, thebuck and header portions of the framing, are not necessarily straight,true and of exactly correct size.

It is, accordingly, an object of this invention to provide apre-assembled casing which is and will remain true and rectangular;which may be easily arranged in plumb position in a building wallopening; which is then readily and securely fastenable in such plumbposition; which adapts itself to walls of various thicknesses andcompensates for irregularities of the wall portions adjacent theopening; which may be prefitted with trim strips; and which may, ifdesired, be prefitted with a door already hung properly in placetherein.

A further object is to simplify the procedure necessary in mounting anadjustable door casing, or the like, in the rough opening'of a buildingWall.

Another specific object is to increase the rigidity of mounting of apro-assembled casing in a building wall opening.

While this invention pertains particularly to adjustable door casings,and while a door casing is specifically described herein, it will beapparent that the principles of this invention are applicable to windowcasings, outside door casings, and generally to casing for building wallopenings, whether such openings are to be fitted with closure members ornot. Furthermore, the casing is herein shown and described as being ofwood. It will be apparent to those skilled in the art that metal orother materials may be substituted for wood throughout the casing, or inparts of the casing.

The novel features which I believe to be characteristic of my inventionare set forth with particularity in the appended claims. My inventionitself, however, both as to its organization and method of operation,together with further objects and advantages thereof, may best beunderstood by reference'to the following description'taken in connectionwith the accompanying drawing, in which Fig. 1 is a side elevationalview of an upper corner of a Re. 24,28 5 Reissued Mar. 12, 1957 doorcasing, partially broken away to show the attachment means fasteningthecasing to'the door buck; Fig. 2 is a partial end view of the cornerof Fig. 1, partially broken away and slightly enlarged to' showcertaindetails of the invention; Fig. 3 is a' sectional view of'thecasingstaken alongline 33 of Fig. 1 and slightly enlarged; Fig. 4 is anexploded isometric view of the' casing attachment devicesac'cordingtothis' invention; Fig; 5 is' a perspective view of a complete doorcasing'as' it maybe manufactured and delivered 'to'th'e building'site;and Fig. 6 is an enlarged sectional view of a portion of a door anddoorcasing showing detail s'of a blocking arrangement which may. beemployed in shipping the casing of this invention.

Referring to Fig. 1', the casingis shown attached in place in a'dooropeningin wall 1. The casing comprises two jamb members 2 and iextendingvertically inside" the rough openingi Thehidden face 4 of jambmember 2 arranged toward the swing side of the opening carries metalplate 5 which is securely attached through a metal angle member or'anchor 6'to the framing stud or door buclc 7. Metal tenon 8 is shownclamped under plate 5 against the hidden face of jamb member 2. As laterdescribed, this tenon is attached at its base to the hidden face of jambmember 3, and when the tenon is clamped as shown in Fig. 1, the twomembers 2 and 3 of the split jamb are thereby securely attached one tothe other. Clamping of the tenon 8 under plate 5 is accomplished bytightening a bolt 9, which has its head at the exposed surface 10 ofjamb member 2 and which extends through this jamb member and threadedlyengages an opening in plate 5'. It will be noted that plate 5 ispreferably sprung at its lower end slightly outwardly from the hiddenface 4 of member 2. A threaded attachment element in the form of bat:[Bolt] 11 extends through a horizontal slot 12 in arm 13 of angle 6 andthreads'into an opening in an ear 14 of plate 5 to attach the angletojamb memher 2, and nail l5 extends through a vertical slot in arm 16 ofangle 6 and into the studs which form the buck 7. Trim strips 1-7 and 18are attached originally to the jamb members 2 and'3 along their outeredges, the outer edge 19 of jamb members 3 only being visible in Fig. 1.During installation, as later considered, the trim strips are nailedalso to the wall or to the buck and header. A vertical door stop strip20"is applied t'o'the exposed faces of jamb members 2" and 3, as bestseen in Figs. 2 and 3.

It will be understood that while only one anchor assembly, comprisingplate 5, angle 6 and tenon 8, is seen in the view of Fig. 1, severalsuch anchor assemblies are preferably provided along each vertical jamb,but two such assemblies for each jamb, or four for a complete casing,may be sufficient, and it will seldom be necessary to provide more thansix for a complete casing, one at approximately the vertical center, onenear the upper hinge level and one near the lower hinge level for eachof the two jambs of a casing.

While one or more anchor assemblies may also be used to anchor theheadpieccs at 21 to the headers 22 of the rough opening, ithas beenfound that such anchoring is not necessary, and it is, therefore,preferred in this invention to provide a dowel 23 to interconnect thetwo parallel head pieces, and to rely primarily upon trim members 24,25' to provide the small amountof support appropriate to this portion ofthe casing. Trim members 24" and 25 are pre-attached to respective headpieces 26, 27, and are; upon mounting of the casing, nailed or similarlyattached to the wall or header of the rough opening.

With reference to Fig. 2, it will be seen that dowel 23 fits intocylindrical cavities in head pieces 26, 27- to provide stiffness to thecasing at this point; The rigidity may be further increased, and anytendency of the members'26, 27 toseparate'reduced; by settingthe dowelendswith small nails driven upwardly through each head piece into thedowel. Door stop strip 28, however, is normally nailed in place withnails into each head piece, and, as heretofore explained, the trimstrips 24, 25 are nailed to the respective wall surfaces which theyoverlie and pro vide substantial support.

Fig. 2 further illustrates the anchoring assembly for the vertical jambmembers 2 and 3. Vertical door stop strip 20 is seen to partiallyoverlie the exposed surfaces of the jamb members, and it completelycovers the space left between the inner edges 29 and 30 of members 2 and3, respectively. The stop member 20 and parts ofthe jamb members 2 and 3are broken away to show the angle member 6, which is nailed by nail 15through the vertical slot 31 of arm 16 to buck 7, and the head of bolt11 and its underlying lock washer 32 which are provided to connect arm13 of the angle members to ear 14 of plate 5. Also visible is a portionof tenon 8, which extends from a screw attachment at the base end 33 ofthe tenon to the hidden face of jamb member 3 across the spaceintervening between inner edges 29 and 30 of the jamb members. Woodscrews 34 serve to attach the tenon base portion 33 to member 3. Theextending end 35 of tenon 8 engages in a formed intermediate socketportion of plate between wood screw 36 and bolt 9. Screw 36 holds theupper portion of plate 5 flat against the hidden surface of jamb member2, while bolt 9, threadedly engaging in an opening in the lower portion,draws the lower portion closer to the jarnb member and, when tightened,causes end 35 of the tenon to be securely clamped against the hiddensurface of the member 2.

It is to be noted that door stop member 20 when applied will completelycover the head of bolt 9, as well as all other parts of the anchorassembly which would otherwise be visible from the exposed face side ofthe jamb members.

Fig. 2 further shows the positions occupied by trim strips 17 and 18which are pre-attached to the outer edges 37 and 38, respectively, ofjamb members 2 and 3.

Fig. 3 is an enlarged sectional view along line 3--3 of Fig. 1 andclearly discloses the positions of the several parts of a vertical jambportion of a casing as applied to a wall edge defining a rough opening.The buck 7 may comprise two two-by-four studs or framing membersdisposed between plaster board panels 39 and 40. The exposed surfaces ofthese panels form wall surfaces 41 and 42, each of which is overlaid bya respective one of trim strips 17 and 18.

A door 43 may be hinged to jamb member 2 to swing into the space beyondwall surface 41, or the door may be hinged to the corresponding jambmember at the opposite side of the casing. The door is preferably hingedto a jamb member which is directly anchored through one or more angles 6to a buck, rather than to a jamb member 3 which is connected to suchangle through a tenon .8.

Fig. 4 discloses the details of the anchor assembly for attaching thecasing to the door buck. The assembly comprises the angle 6 having avertically slotted arm 16 nailed, by nail 15, to the door buck 7, andhorizontally slotted arm 13 attachable by bolt 11 to ear 14 of plate 5.Lock washer 32 is provided under the head of bolt 11. Plate 5 isattached by wood screw 36 to the hidden face of jamb member 2, and theupper portion of the plate carrying the ear 14, lies fiat against thehidden jamb face. It will be noted that ear 14 is substantially flushwith and is in effect an extension of the inner edge sur face 29 of jambmember 2. An offset and outwardly sprung intermediate portion forms asocket or clamping portion to receive the protruding end 35 of tenon 8,and bolt 9, of which the head is engaged against jamb member 2 at itsexposed face, threads into a lower portion of the plate. This lowerportion is also sprung slightly away from the hidden surface of the jambmember.

Turning bolt 9 toward the right draws the lower and intermediateportions of the plate 5 toward the jamb member, as though theintermediate socket portion of plate 5 were connected to the lower edgeof the upper rigidly affixed portion along a fold line, as though by astiff hinge. The stiff fold or hinge line may be partially weakened, ifdesired, as indicated in Fig. 4 by a small cut at one end of the foldline. Drawing-in the lower and intermediate socket portion, by rotationof the operating bolt 9, causes the intermediate portion to force theend 35 of tenon 8 against the hidden surface of the jamb member 2. Thebase portion 33 of the blade-like tenon member 8 is rigidly aflixedagainst the hidden surface of jamb member 3. The tenon, accordingly, ismounted flush against the hidden surface of jamb member 3 and extendsfrom this jamb member in alignment with its hidden face. When clamped inthe socket of plate 5, the tenon is similarly aligned with the hiddenface of jamb member 2. Since the jamb members are desirably equal inthickness, both the exposed and hidden faces are thus aligned into thesame planes by the tenon.

This invention particularly contemplates the manufacture of completedoor casings in a mill and shipment to the building site for rapid andeasy mounting in place. A manufactured door casing ready for mounting isshown in Fig. 5. Door 43 is ready hung by hinges 44 to a jamb member 2of the casing and trim strips 17 and 18 are firmly attached to theappropriate respective jamb members 2 and 3 and trim strips 24 and 25are similarly attached to the head pieces as previously described. Thedoor lock mechanism has been omitted, but suitable openings arepre-bored. Then anchor assemblies are normally provided at each side ofthe casing, as indicated for the lock side in Fig. 5. The door stop 29only is loosely tacked in place at the factory and should be removed formounting of the casing at the site. One or two priming coats of paintare preferably applied at the mill, and only a finish coat is necessaryafter installation.

The method of installation in the rough wall opening may be understoodwith particular reference to Fig. 5 and Fig. 3. When stop member 2t} hasbeen removed from the casing, and when the clamp bolt for each plate 5is loosened, the casing comes apart into two major assemblies, one ofwhich comprises jarnb members 2, trim strips 17, 25, and the door 43,while the other comprises jamb members 3 and trim strips 18, 24.

The half comprising the jamb members 2 is first brought into properposition with trim strips 17 and 25 engaging the wall surface 41 aroundthe opening and with the jambs properly plumb, or as nearly plumb aspossible. The arms 16 of the angles 6 are now protruding beyond theinner edge of the jamb members 2 and the bolts 11 are readilyaccessible. The angles may be nailed to the buck, by nails 15, and thenthe ears 14 of the plates 5 adjusted along the angles and lock d indesired adjusted positions by bolts ll, but, preferably, the angles 6are adjusted on ears 14 to dispose the arms 16 of the angles against thebuck before nailing the angles to the buck by nails 15. The trim strips17 and 25 may be nailed to the walls at this time or after placement ofthe other half of the casing as desired.

After all of the angles 6 have been locked to their respective cars 14by bolts 11 in properly selected adjusted positions and have beensecured to the buck by nails 15, the other half of the casing is slippedinto place, a tenon 8 engaging in the socket formed by each plate 5, andthe dowel 23 sliding into the bore in head piece 2'7 as seen in Fig. 2.When the trim strips 18 and 24 are suitably seated against wall surface42, the tenon locking bolts 9 are tightened to clamp the tenons 3 underplates 5. The whole casing is now securely in place. Installation iscompleted, however, by nailing the trim strips 1% and 24, and the trimstrips 17 and 25 if these have not beenvpreviously nailed, to the wall,and by nailing the door stops 20 and 28 to the jambmembers and headpieces. Nailing of the stop strips in place to members of both of thecasing halvesreinforces the installed casing. A finishing coat of paintmay now be applied to the casing, including door 43, and the door lockmounted. It is sometimes desirable to mount the door lock prior tonailing. in of the stop strips so that the strips can be more accuratelypositioned.

In order that the door 43 may be held during shipment of the casing, andto simplify the mounting of the lock hardware upon installation, a doorbolt aperture 45 is bored into the exposed face of jamb member 2, andthe lock bolt opening 46 and lock body opening 47 are bored in the doormember 43. The openings are shown in Fig. and will be seen therein to beavailable for the mounting of a lock and desired escutcheon plates andthe like.

The detail'sectional view of Fig. 6, however, taken through a portion ofthe door in closed position and through the adjacent portion of the jambmember 2, shows a reinforcing device or member in the form of a dowelrod 48 fitted in the lock bolt opening and extending at one end into thelock body opening 47 and at the other end into bolt aperture 45 in jambmember 2. An anchoring pin or nail 49 protrudes from dowel 48 within thelock body opening 47. Wood screw 50 enters the bottom of aperture 45 andaligns with and screws longitudinally into dowel 48. As screw 50 isturned into dowel- 48, the dowel is drawn into aperture 45 until pin 49engages the left-hand edge of lock body opening 47. As this condition isreached, since dowel 48 fits closely, though not bindingly, in aperture45 and opening 46, the otherwise free vertical edge of the door isanchored firmly to the adjacent jamb member 2. This anchoring preventsswinging of the door on its hinges and prevents shifting of the dooralong jam member 2 opposite the hinges 44. The door thus becomes a verystrong cross brace for the casing during shipment, holding the jambmembers 2 against any forces tending to pull the jamb members apart atthe bottom of the casing, and, more importantly, preventing the framefrom being. jarred outof rectangular shape even when subjected toaccidental dropping on one of the corners of the casing. The results isthat the upper joints of the casing are not loosened even with roughhandling in shipment, and that the casing is rigidly held in itsrectangular shape.

When it is desired to mount the casing in the building wall, the screw50 is withdrawn and discarded and the dowel 48 is slid out ofaperture 45and further into the door, until the end of the dowel meets the backwall of opening 47, for example. The door may now be freely opened onits hinges. Pin, screw or nail 49 should be removed from the dowel 48 atthis time, and the dowel is slipped out of lock bolt opening 46 anddiscarded.

It will be recognized that my invention as above described permits adoor casing to be preassembled, including the aflixing of the trimmembers to the jamb members, and, upon mounting in a building wall, tobe anchored and braced directly against the faces of the buck at bothsides without the use of wedges or shims. The mounting of the casing ofmy invention is rapidly accomplished with ease and accuracy, and theinstallation is completed without leaving exposed bolt heads or otherfastening means. Since the jamb members to which the door is' attachedare firmly affixed at a predetermined adjusted distance from the face ofthe buck, the disadvantages of relying on the walls and trim strips forsupport are overcome, with a consequent greatly reduced tendency towardsagging of the door or cracking of plaster adjacent the casing. It isfurther apparent that the individual adjustment of each angle memberpermits positioning of the jamb members in substantially exactlyvertical or plumb'positions, even though the face of the buck toward theopening, against which face the angles are afl'ixed, may be warped ornot vertical.

While I have shown only certain preferred embodiments of my invention byway of illustration, many modifications will occur to those skilled inthe art, and I therefore Wish to have it understood that I intend, inthe appended claims, to cover all such modification as fall within thetrue spirit and scope of my invention.

What I claim as new and desire to secure by Letters Patent of the UnitedStates is:

1. An attachment assembly for attaching a pair of jamb members of asplit jamb or the like to a door buck or the like, said assemblycomprising a plate for attachment against the hidden face of one saidjamb member, a tenon for attachment against the hidden face of saidother jamb member and having a portion protruding horizontally therefromin alignment with said last face, said plate having a portion formed toreceive and clamp said protruding portion of said tenon against saidfirst hidden face and having an ear extending in a directionperpendicular to said first hidden face, an angle member having a firstarm for attachment to said buck and a second arm to engage said ear, andadjustable attaching means connecting said second arm and ear inadjustble positions to dispose said first arm at selectablepredetermined adjusted distances from said first face.

2. An attchment assembly for attaching a pair of jamb members of a splitjamb or the like to a door buck or the like, said assembly comprising anelongated fiat tenon having mounting holes adjacent one end and ablade-like portion at the other end, a tenon-clamping plate memberhaving a body comprising an upper and lower portion and an'intermediateportion formed to receive said bladelike portion of said tenon, anoutwardly extending ear on one of said upper and lower portions of saidplate member, an angle member having one arm for attachment to said buckand a perpendicular second arm adjustably attached to said ear to locksaid one arm and said body at predetermined selected spaced positions,said one end of said tenon being attached against the hidden surface ofone said jamb member, and said upper and lower portions of said platebody being attachedat the hidden surface to the other of said jambmembers.

3. An attachment assembly for attaching a split jamb door casing or thelike to a door buck member or the like, said casing comprising two jambmembers for aligned positioning adjacent said buck member, said assemblycomprising a tenon device for attachment to a hidden face of one saidjamb member, a tenon clamping device for attachment against a hiddenface of said other jamb member, and an anchor member, locking means forlocking said devices to each other in selected adjusted position, one ofsaid devices comprising an ear, said anchor member having a portion forengaged attachment to said buck member and a spaced portion foradjustable engagement with said ear, and adjustable attachment means tolock said spaced portion, of said anchor member in predeterminedselected position to said ear.

4.- A pair of parallel vertical door jamb members for mounting to a doorbuck, said members having normally hidden faces adapted to-be inalignment in a predetermined plane, a tenon extending between saidmembers and having end portions respectively engaging said hidden faces,means affixing said tenon at one said end to the respective hidden faceof one said member, a plate having a portion attached against the hiddenface of the other said member adjacent the respective engaging end ofsaid tenon and having an intermediate portion extending over said tenonand a terminal portion spaced from said last hidden face, force applyingmeans connected to said terminal portion of said plate to urge saidterminal portion and said intermediate portion toward said last hiddenface to clamp said tenon to said last hidden face, an car carried bysaid face-attached portion of said plate and eX- tending in a directionperpendicular to the plane of said last hidden face, an angle membercomprising an apertured buck-engaging arm and an arm engaging said ear,and adjustable attachment means to lock said last arm and ear inpredetermined selected position.

5. A door casing comprising a pair of adjacent jamb sections, a tenonmember attached to one of said sections and extending toward the othersaid section, a tenonclamping member attached to said other section andcomprising a tenon receiving socket, means to clamp a part of theextending portion of said tenon in said socket, an anchor element havinga buck-engaging portion and a second portion extending therefrom, one ofsaid members comprising an ear, and adjustable attachment means to locksaid second portion of said anchor element to said ear, thereby to fixsaid buck-engaging portion in pre determined spaced relation to thatjamb section to which said one member is attached.

6. A door casing comprising a pair of adjacent jamb sections, a tenonattached to one of said sections extending toward the other saidsection, a plate member attached to said other section and forming asocket to receive said tenon, means to clamp said tenon in said socket,an angle member attached to said plate in horizontally selectableposition relative thereto and having a portion fastened to a buck at aportion of the surface of said buck spaced from said one section towardsaid other section.

7. A pro-assembled building wall opening closure casing comprising afirst section for insertion from one side of said opening and a secondsection for subsequent insertion from the other side, said first sectioncomprising a lining member having an inner edge, an outer edge, a hiddenface and a parallel exposed face, a trim member fixed along said outeredge and extending therefrom substantially perpendicularly to said facesto hide said hidden face, a tenon locking plate comprising a firstportion aifixed in contact with said hidden face adjacent said inneredge, a second portion spaced from said hidden face and shaped toreceive a tenon and a third portion spaced from said hidden face, meansoperable from said exposed face and connecting with said third portionto urge said second and third portions toward said hidden face, an earaffixed to said first portion extending in a direction perpendicular tothe plane of said hidden face, an angle member having an arm engagingsaid ear and a sec- 011d arm spaced from said hidden face andsubstantially parallel to said hidden face and protruding beyond saidinner edge, adjustable attachment means operable from beyond said inneredge for attaching said first arm to said ear in selective adjustableposition to dispose said second arm at a corresponding selected spacedposition relative to said hidden face, said second arm being adapted forattachment to a member of said building wall bounding said opening, saidsecond section comprising a second lining member for positioning inalignment with said first lining member with an inner edge toward saidinner edge of said first lining member, and tenon means attached to saidsecond lining member extending beyond its said in ner edge andengageable for locking between said second portion of said plate andsaid hidden face.

8. A pre-assembled casing for a building wall opening, said openingbeing bounded by a framing member having a substantially vertical facetoward said opening, said casing comprising first and second verticaljamb members for parallel aligned positioning spaced from and generallyparallel to said face, an ear rigidly attached to said first jamb memberand extending perpendicularly therefrom toward said face, an anglemember having an arm for attachment against the face of said framingmember, said first jamb member having an inner edge adjacent said earandhaving an opposed outer edge, adjustable attachment means exposed foroperation from beyond said inner edge to lock said angle member to saidear in selectable adjusted position with said arm extending away fromsaid first jamb member beyond said inner edge thereof, said second jambmember having an inner edge to be disposed toward said inner edge ofsaid first jamb member and an outer edge to be disposed away from saidfirst jamb member, a trim strip pre-aifixed along each said outer edgeto overlie portions of the respective opposite surfaces of said walladjacent said opening, said jamb members having respective hidden facestoward said face of said framing member, and locking means spanningbetween said inner edges to lock said jamb members one to the other inpredetermined selected positions, said locking means comprisingoperating means extending through one said jamb member and exposed foroperation at an exposed surface of said last jamb member and operatedlocking members disposed at hidden surfaces of said jamb members. I I

9. A pie-assembled casing for a building wall opening, said openingbeing bounded by a framing member having a substantially vertical facetoward said opening, said casing comprising first and second vertical jamb members for parallel aligned positioning spaced from and generallyparallel to said face, an ear rigidly attached to said first jamb memberand extending perpendicularly therefrom toward said face, an anglemember having an arm for attachment against the face of said framingmember, said first jamb member having an inner edge adjacent said earand having an opposed outer edge, adjustable attachment means exposedfor operation from beyond said inner edge to lock said angle member tosaid ear in selectable adjusted position with said arm extending awayfrom said first jamb member beyond said inner edge thereof, said secondjamb member having an inner edge to be disposed toward said inner edgeof said first jamb member and an outer edge to be disposed away fromsaid first jamb member, a trim strip pre-aifixed along each said outeredge to overlie portions of the respective opposite surfaces of saidwall adjacent said opening, said jamb members having respective hiddenfaces toward said face of said framing member, a door hingedly mountedto said first jamb member, and locking means spanning between said inneredges to lock said jamb members one to the other in predeterminedselected positions, said locking means comprising operating meansextending through one said jamb member and exposed for operation at anexposed surface of said last jamb member and operated locking membersdisposed at hidden surfaces of said jamb members.

10. A pro-assembled casing for a building wall opening, said openingbeing bounded by a framing member having a substantially vertical facetoward said opening, said casing comprising first and second verticaljamb members for parallel aligned positioning spaced from and generallyparallel to said face, an ear rigidly attached to said first jamb memberand extending perpendicularly therefrom toward said face, an anglemember having an arm for attachment against the face of said framingmember, said first jamb member having an inner edge adjacent said earand having an opposed outer edge, adjustable attachment means exposedfor operation from beyond said inner edge to lock said angle member tosaid ear in selectable adjusted position with said arm extending awayfrom said first jamb member beyond said inner edge thereof, said secondjamb member having an inner edge to be disposed toward said inner edgeof said first jamb member and an outer edge to be disposed away fromsaid first jamb member, a trim strip pre-affixed along each said outeredge to overlie portions of the respective opposite surfaces of saidwall adjacent said opening, said jamb members having respective hiddenfaces toward said face of said framing member, a door hingedly mountedto said first jamb member, a tenon mounted to one of said jamb membersand extending beyond the respective inner edge thereof in alignment withsaid hidden face of said one jamb member, and means for clamping anextending portion of said tenon against said hidden face of the othersaid jamb member, said means comprising a tenon clamping member and anactuating threaded member extending through said other jamb memberadjacent said inner edge thereof.

11. A pair of parallel vertical door jamb members for mounting to a doorbuck, said members having normally hidden faces adapted to be inalignment in a predetermined plane, a tenon extending between saidmembers and having end portions respectively engaging said hidden faces,means afiixing said tenon at one said end to the respective hidden faceof one said member, a plate having a first portion rigidly afiixedagainst the hidden face of the other said member and a second portioncomprising a tenon-receiving socket adapted to overlie the other saidend portion of said tenon, said second portion being connected along afold line to said first portion, force applying means engaging saidsecond portion operative to force said second portion against saidhidden face of said other member and thereby to clamp said tenon, an earcarried by said first portion, spacing means arranged for attachment toa door buck, and means adjustably to attach said spacing means to saidear.

12. In a split jamb door frame structure comprising a pair of split jambmembers, a rough buck adjacent said members having a vertical face.disposed toward said members, the combination of one of said jambmembers having at its inner edge an integral flat surfaced portion ofwhich the flat surface is perpendicular to said buck face, an anglemember having two flat arms perpendicular to one another, said anglemember being disposed with one arm flat against said back face and withthe other arm extending outwardly from said face and lying flat againstsaid flat surface at said inner edge of said jamb member, means rigidlyafiixing said one arm to said buck face, said other arm having a slottherein, and atachment means for fixing said other arm to said one jambmember comprising a threaded attachment element passing through saidslot and connected to said jamb member, said element having a headengaging against said other arm.

13. The combination in accord with claim 12 wherein said one arm extendsfrom its intersection with said other arm along said buck face in adirection away from said one jamb member, wherein said one arm has anopening therethrough, and wherein said means aflixing said one arm tosaid back face comprises a nail driven through said opening into saidback, said nail having a head engaging said one arm.

14. The combination in accord with claim 12 wherein said one arm has aslot therethrough and wherein said means afiixing said one arm to saidbuck face comprises a nail driven through said slot of said one arm intosaid buck, said nail having a head engaging said one arm.

15. The combination in accord with claim 12 wherein said slot iselongated in a direction at an angle to said vertical buck face.

16. The combination in accord with claim 15 wherein said direction inwhich said slot is elongated is substantially a horizontal direction.

17. In combination, in a split jamb door casing structure comprising apair of split jamb members and a rough back, one of said members havingan inner edge including an edge surface extending perpendicularly to theface of said back, a metal angle member having two flat arms extendingat right angles to one another, one said arm lying flat against saidbuck face, means attaching said one arm fixedly to said back face, theoth r said arm extending perpendicularly outwardly from said buck faceand lying flat against said edge surface, said other arm having a slotopening therethrough and oriented to extend in a direction away from theintersection of said arms and toward the outer end of said second arm, athreaded attachment element extending through said slot and com nectedto said one jamb member, said element having a head portion engagedagainst and forcing said other arm against said edge surface, thereby tofix said one jamb member at its said inner edge in adjustable spacedposition with respect to said buck face.

18. The combination according to claim 17 wherein a tenon memberconnects between said jamb members to maintain said jamb members inalignment with each other.

References Cited in the file of this patent or the original patentUNITED STATES PATENTS 1,855,470 Bilton Apr. 26, 1932 1,926,673 GreggSept. 12, 1933 2,185,650 Shipway et al Jan. 2, 1940 2,489,029 GuerrantNov. 29, 1949 2,608,276 Kelly Aug. 26, 1952

